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JUCS - Journal of Universal Computer Science 18(20): 2750-2770
doi:
10.3217/jucs-018-20-2750
Received:
24 Jan 2012 | Approved:
18 Sep 2012 | Published:
01 Feb 2012
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Authors
Mushtaq Ahmad
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University of Pretoria, Pretoria, South Africa
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University of Pretoria, Pretoria, South Africa
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Mohammad Ali Jinnah University, Islamabad, Pakistan
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Conflict of interest
The authors have declared that no competing interests exist.
This article is freely available under the J.UCS Open Content License.